In which of the following compounds will nitr | vedclass

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(B) The Lassaigne test is used to detect nitrogen,sulfur,and halogens in organic compounds. For the detection of nitrogen,the compound must contain bo

Vedclass · Accepted Answer

$NH_2NH_2 \cdot HCl$

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(B) The Lassaigne test is used to detect nitrogen,sulfur,and halogens in organic compounds. For the detection of nitrogen,the compound must contain both carbon and nitrogen atoms to form sodium cyanide $(NaCN)$ upon fusion with metallic sodium. In the compound $NH_2NH_2 \cdot HCl$ (hydrazine hydrochloride),there is no carbon atom present. Therefore,it cannot form $NaCN$ during the fusion process,and thus,it fails the Lassaigne test for nitrogen.

In which of the following compounds will nitrogen not be detected by the Lassaigne test?

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